Refereum is developing a blockchain-based affiliate referral ecosystem that is focused on gaming. Their goal is to develop a decentralized affiliate marketing platform that will be powered by the Ethereum-based RFR token, and will enable on-chain attribution for marketing engagements. Refereum places an emphasis on gaming, and their platform allows game developers to create incentivized quests that reward game players for completing in-game tasks.

Ubex is developing a decentralized ad exchange that will connect advertisers and publishers. The Ubex network will be powered by the native UBEX token. Advertisers will be able to bid for tokenized ad slots on a blockchain-based exchange; adding efficiency and transparency to the media buying process.